SEVERSTAL SPARROWS POINT, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 247

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5100034 Molten metal slide gate valveMar 25, 91Mar 31, 92[B22D]
5083754 Apparatus for retaining slag during the discharge of molten metal from a tundishJun 20, 91Jan 28, 92[B22D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7699686 Method for polishing and aluminum-zinc hot-dip coatingExpiredNov 03, 06Apr 20, 10[B24B]
7238430 Composition for controlling spangle size, a coated steel product, and a coating methodExpiredApr 19, 05Jul 03, 07[B32B]
2007/0009,755 Faux stainless steel and method of makingAbandonedSep 07, 05Jan 11, 07[B05D, B32B]
7041386 Composition for controlling spangle size, a coated steel product, and a coating methodExpiredJan 07, 04May 09, 06[B32B]
6835229 Method and apparatus for clearing a powder accumulation in a powder delivery tubeExpiredJan 22, 02Dec 28, 04[C21B]
6797032 Method for measuring bath level in a basic oxygen furnace to determine lance height adjustmentExpiredAug 14, 02Sep 28, 04[C21C]
6468674 Coating composition for steel--product, a coated steel product, and a steel product coating methodExpiredOct 18, 01Oct 22, 02[C22B, B05D, B32B]
6440355 Apparatus for measuring bath level in a basic oxygen furnace to determine lance height adjustmentExpiredSep 06, 00Aug 27, 02[C21B]
6440582 Coating composition for steel product, a coated steel product, and a steel product coating methodExpiredMar 25, 02Aug 27, 02[B32B]
6408667 Four-high mill stand roll change device, a method of retrofit, and a roll change device therefromExpiredOct 26, 00Jun 25, 02[B21B]
6086817 Off-gas hood for a basic oxygen furnace and method of repairExpiredOct 16, 98Jul 11, 00[C21B]

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